On Wed, 2013-06-05 at 14:10 +0100, David Laight wrote: > > If a BAR has the value of 0, we would assume that it is unset yet and > > then mark the resource as unset and would reassign it later. > > IIRC the PCI spec allows a BAR address of zero. > Certainly some sparc systems have assigned 0 to a BAR. > So assuming a BAR of 0 means it is unset may not be > true for all systems.
Yes, look at the code and the comment above :-) It tries to make a guess... which so far has worked well for us. Note that people assigning 0 to BARs are asking for trouble anyway. Cheers, Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
